Pronunciation: (giz'urd), [key]
n. Zool.
1. Also called ventriculus. a thick-walled, muscular pouch in the lower stomach of many birds and reptiles that grinds food, often with the aid of ingested stones or grit.
2. Also called gastric mill. a similar structure in the foregut of arthropods and several other invertebrates, often lined with chitin and small teeth.
3. the innards or viscera collectively, esp. the intestine and stomach.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

gizmogizzard shad
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